3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array(); $arr["1"] = array("type" => "ping", "timestamp" => time(), "targets" => array()); foreach ($arr as $id => $msg) { print(json_encode($arr[$id])); }
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
{"type":"ping","timestamp":1499088654,"targets":[]}